import from github

tools/preproc/asm_file.h

@@ -0,0 +1,73 @@
+// Copyright(c) 2016 YamaArashi
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#ifndef ASM_FILE_H
+#define ASM_FILE_H
+
+#include <cstdarg>
+#include <cstdint>
+#include <string>
+#include "preproc.h"
+
+enum class Directive
+{
+    Include,
+    String,
+    Braille,
+    Unknown
+};
+
+class AsmFile
+{
+public:
+    AsmFile(std::string filename);
+    AsmFile(AsmFile&& other);
+    AsmFile(const AsmFile&) = delete;
+    ~AsmFile();
+    Directive GetDirective();
+    std::string GetGlobalLabel();
+    std::string ReadPath();
+    int ReadString(unsigned char* s);
+    int ReadBraille(unsigned char* s);
+    bool IsAtEnd();
+    void OutputLine();
+    void OutputLocation();
+
+private:
+    char* m_buffer;
+    long m_pos;
+    long m_size;
+    long m_lineNum;
+    long m_lineStart;
+    std::string m_filename;
+
+    bool ConsumeComma();
+    int ReadPadLength();
+    void RemoveComments();
+    bool CheckForDirective(std::string name);
+    void SkipWhitespace();
+    void ExpectEmptyRestOfLine();
+    void ReportDiagnostic(const char* type, const char* format, std::va_list args);
+    void RaiseError(const char* format, ...);
+    void RaiseWarning(const char* format, ...);
+    void VerifyStringLength(int length);
+};
+
+#endif // ASM_FILE_H